Kynurenic AcidKynureninePregnanoloneQuinolinic AcidXanthurenatesTransaminasesKynurenine 3-MonooxygenaseExcitatory Amino Acid AntagonistsAminooxyacetic AcidSteroidsGlutamic AcidReceptors, Amino AcidPregnenoloneGalantaminealpha7 Nicotinic Acetylcholine ReceptorQuinolinic AcidsTryptophanQuisqualic AcidPregnanedionesReceptors, GlutamateGABA AntagonistsTectum MesencephaliPyometraN-MethylaspartateReceptors, GABA-AGABA ModulatorsMedulla OblongataRats, Sprague-DawleyNootropic AgentsReceptors, N-Methyl-D-Aspartategamma-Aminobutyric Acid5-alpha-DihydroprogesteroneStrychnineRats, WistarIbotenic Acid2-Amino-5-phosphonovalerateortho-AminobenzoatesBicucullineNiacinSynaptic TransmissionNeurotransmitter AgentsReceptors, NeurotransmitterNeuronsBrainDehydroepiandrosteroneDizocilpine MaleateMicroinjectionsHippocampusGlutamatesDose-Response Relationship, DrugLyasesEstranesExcitatory Amino Acid AgonistsKainic AcidNorandrostanesMicrodialysisReceptors, NicotinicNicotinic AntagonistsGlycine